Four MSU Veterinary Medical Center employees were nauseated by what they described as a chemical odor in the building Wednesday morning.Courtesy MSU

EAST LANSING, MI -- Emergency crews responded Wednesday morning when four Michigan State University Veterinary Medical Center employees reported an odor had made them ill.

The sickened employees told authorities they smelled a chemical odor, which resulted in their nausea, according to MSU police. East Lansing firefighters investigated and determined the smell emanated from work being done in the building by custodians.

The situation was not hazardous, MSU police said. None of the four nauseated employees required medical attention.